Well, gang, I can't believe it, but I sold the 180 today.....tank, light and all equipment. I am concentrating more on the business end, and decided to go with a smaller tank in the fish room instead! So get ready for a new build thread!\r\n\r\nAnyways, I'm figuring something in the 65-90g range. I also have 3 36x12x12 tanks and the 46. I am figuring on running the 36 seperate as a fish tank for the business, and tying the three little ones and the new tank into one sump/system? Any input?